GTA IV Patch v1.0.7.0 and crack. I also included a way to enable autosave without entering a serial.
Tutorial by MAD100007.
If you don't know it anymore and need some help. Add steam/xfire: MAD100007 or MSN: [email protected]

works like charm with the version downloaded from this torrent: GTA IV PC Version from cgaurav007. the only difficult part for me was to find where to create a GFWL offline account, nevertheless, everything went smoothly. thanks!